How to print categories in a post, WordPress

example.php

<?php
$categories = get_the_category( $post-> ID );
$category = $categories[0]->cat_name;

// How to use it

$args = array(
  'post_type'     => 'post-type-name',
  'category_name' => $category
);

$query = new WP_Query( $args );

while ( $query->have_posts() ): $query->the_post;
  the_permalink();
endwhile;
?>